US4906086A - Rearview mirror device for motorcycles - Google Patents
Rearview mirror device for motorcycles Download PDFInfo
- Publication number
- US4906086A US4906086A US07/208,139 US20813988A US4906086A US 4906086 A US4906086 A US 4906086A US 20813988 A US20813988 A US 20813988A US 4906086 A US4906086 A US 4906086A
- Authority
- US
- United States
- Prior art keywords
- motorcycle
- rearview mirror
- handgrips
- handlebar
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J29/00—Adaptations or arrangements of mirrors for use on cycles
Definitions
- the present invention relates to a rearview mirror device for use on a motorcycle.
- FIG. 7 of the accompanying drawings many conventional motorcycles generally have rearview mirrors 103 disposed considerably upwardly of a handlebar 109.
- the motorcycle illustrated in FIG. 7 includes a cowling 102 which covers a front portion of the frame of the motorcycle.
- the rearview mirrors 103 are supported on respective stays 104 which project upwardly from opposite sides of the cowling 102.
- the rearview mirrors 103 With the rearview mirrors 103 positioned above the handlebar 109, since the rearview mirrors 103 give the rider a view of the area behind the motorcycle over the upper arms of the rider, it is necessary that the rearview mirrors 103 project laterally of the motorcycle beyond a certain distance. It is therefore difficult to increase the mechanical strength and rigidity of the stays 104 for the prevention of vibration of the rearview mirrors 103. If the diameter of the stays 104 were increased for greater rigidity, the weight of the upper portion of the motorcycle would be increased, and so would the area of forward projection of the motorcycle, resulting in increased air resistance or aerodynamic drag. Moreover, inasmuch as the stays 104 project laterally from the opposite sides of the cowling 102, the rigidity of an upper portion of the cowling 102 including a windshield 105 has to be increased.
- Japanese Laid-Open Utility Model Publication No. 60-92686 discloses a rearview mirror device in which rearview mirrors are mounted on opposite sides of a cowling rearwardly of a handlebar.
- the disclosed rearview mirror device is however disadvantageous in that the angle of view when the rider gets a front view and the angle of view when the rider gets a rear view through the rearview mirrors are widely different from each other, i.e., the rider has to move his eyes through a large angle for a shift from a front view to a rear view or vice versa.
- Another problem with the conventional rearview mirror device is that rain water deposited on an upper surface of the cowling while the motorcycle is running in rain tends to be attached to the reflecting surfaces of the rearview mirrors due to air turbulences developed at the upper ends of the rearview mirrors.
- a rearview mirror device for a motorcycle includes a motorcycle frame, a steering handlebar projecting laterally from the motorcycle frame, a pair of handgrips mounted on opposite outer ends, respectively, of the handlebar, and a pair of rearview mirrors disposed forwardly and downwardly of the handgrips, respectively, when the handlebar is in a neutral steering position.
- FIG. 1 is a perspective view of a motorcycle having a rearview mirror device according to an embodiment of the present invention
- FIG. 2 is a fragmentary side elevational view showing a position where a rearview mirror is disposed
- FIG. 3 is front elevational view of the motorcycle shown in FIG. 1, with a rider sitting on the motorcycle;
- FIG. 4 is a perspective view of a rearview mirror with a housing thereof having a groove
- FIG. 5 is a vertical cross-sectional view of the rearview mirror and its housing shown in FIG. 4;
- FIG. 6 is an enlarged fragmentary cross-sectional view of a water drain hole
- FIG. 7 is a front elevational view of a motorcycle having a conventional rearview mirror device.
- a motorcycle 1 has a front steerable wheel 5 rotatably mounted on a front portion thereof and a rear drive wheel 13 rotatably mounted on a rear portion thereof.
- a fuel tank 11 is supported on a frame (not shown) substantially centrally of the motorcycle and a rider's seat 12 is supported on the frame behind the fuel tank 11.
- the front wheel 5 is rotatably supported on a front fork 4 angularly movably supported on a front end of the frame at a certain caster angle.
- the front wheel 5 can be steered by turning a handlebar 8 coupled to the upper end of the front fork 4.
- Handgrips 9 (only the lefthand handgrip is shown in FIG. 1) are attached respectively to the opposite ends of the handlebar 8.
- a clutch lever 10 is mounted on the handlebar 8 near the lefthand handgrip 9.
- a brake lever is also mounted on the handlebar 8 near the righthand handgrip.
- a cowling 2 is mounted on a front portion of the frame of the motorcycle 1.
- the cowling 2 comprises an upper cowl 21 and a lower cowl 23.
- the upper cowl 21 covers an upper portion of the front fork 4 and a central portion of the handlebar 8, and has a transparent or semitransparent windshield 22 in its upper portion.
- a headlight 7 is mounted in the front end of the upper cowl 21.
- Indicator lights 6 are mounted in front surfaces of a pair of side ends 211, respectively, of the upper cowl 21.
- the side ends 211 have respective upper surfaces 212.
- the side ends 211 of the upper cowl 21 serve as respective housings of rearview mirrors 3 (FIG. 2), which are angularly adjustably mounted on the rear ends of the housings by means of attachment members (not shown).
- each of the rearview mirrors 3 is disposed forwardly and rearwardly of the handgrip 9 while the handlebar 8 is in a neutral steering position when the motorcycle 1 is viewed in side elevation.
- the center of the rearview mirror 3 should be positioned in a hatched range S in FIG. 2.
- the range S is surrounded by a straight line A connecting the center G of the handgrip 9 and the eyes E of the rider R and a straight line B passing through the center G of the handgrip 9 perpendicularly to a straight line C which forms the caster angle of the front wheel 5 with the horizon H, the range S being positioned forwardly of the handgrip 9.
- each of the rearview mirrors 103 is positioned considerably upwardly of one of the handgrips 109 to give the rider R a rear view alongside of the corresponding shoulder of the rider R.
- the rearview mirrors 3 of the rearview mirror device according to the present invention are closer to the transverse center of the motorcycle 1 than the rearview mirrors 103 of the conventional rearview mirror device. Therefore, support members such as housings or stays of the rearview mirrors 3 may be of a shorter length. Accordingly, the area of forward projection of the motorcycle 1 is reduced, and the support members of the rearview mirrors 3 are increased.
- the difference between the angle of view when the rider R gets a front view and the angle of view when the rider R gets a rear view is smaller than that in the rearview mirror device disclosed in Japanese Utility Model Publication No. 60-92686.
- the housings of the rearview mirrors may be constructed as described below for preventing rainwater from being attached to the mirror surfaces of the rearview mirrors while the motorcycle is running in rain.
- each of the side ends 211 serves as a housing of one of the rearview mirrors 3, which is mounted on the rear end of the housing by means of an attachment member (not shown).
- the rearview mirror housing has an upper panel 212 including a rear portion bent rearwardly and downwardly from a position near the upper edge of the rearview mirror 3 in overhanging relation to the reflecting mirror surface of the rearview mirror 3.
- the rear end of the bent rear portion 213 of the upper panel 212 is folded back on itself substantially into a U shape, thus defining a groove 214 opening substantially forwardly and extending transversely of the motorcycle.
- the upper panel 212 has a distal edge 215 of the folded end which is positioned downwardly of an extension l of the upper surface of the upper panel 212 of the housing 211, with a gap D being defined therebetween.
- the water droplets received by the groove 214 may be drained in such a direction as not to affect the rearview mirror 3 or the driver, e.g., laterally in the direction of the arrow Y (FIG. 4).
- the rainwater collected on the bottom of the groove 214 may be drained through a drain hole 216 defined in the bottom of the groove 214.
- the rearview mirrors may be positioned closely to the transverse center of the motorcycle thereby to reduce the area of forward projection of the motorcycle and also to increase the rigidity and hence the mechanical strength of the support members for the rearview mirrors. Therefore, the rearview mirrors are prevented from vibration.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-152896A JPH011673A (ja) | 1987-06-19 | 自動二輪車の後写鏡装置 | |
JP9407887U JPS63201892U (fr) | 1987-06-19 | 1987-06-19 | |
JP62-94078[U] | 1987-06-19 | ||
JP62-152896 | 1987-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4906086A true US4906086A (en) | 1990-03-06 |
Family
ID=26435391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/208,139 Expired - Lifetime US4906086A (en) | 1987-06-19 | 1988-06-16 | Rearview mirror device for motorcycles |
Country Status (2)
Country | Link |
---|---|
US (1) | US4906086A (fr) |
FR (1) | FR2616735B1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5314207A (en) * | 1992-06-10 | 1994-05-24 | Roadmaster Corporation | Bicycle with simulated motorcycle parts |
US5610772A (en) * | 1993-03-23 | 1997-03-11 | Ichikoh Industries Ltd. | Automobile sideview mirror |
US20050088766A1 (en) * | 2003-10-27 | 2005-04-28 | Daviss John J. | Rear view mirror for a motorcycle |
US20080073930A1 (en) * | 2006-07-12 | 2008-03-27 | Edwards Jerry A | Motorcycle windshield |
US20080079285A1 (en) * | 2006-09-29 | 2008-04-03 | Honda Motor Co., Ltd. | Windshield device |
US20080141821A1 (en) * | 2006-12-15 | 2008-06-19 | Physical Logic Ag | Integrated Hand and Controls Protection System |
US20090021582A1 (en) * | 2007-07-20 | 2009-01-22 | Kawasaki Jukogyo Kabushiki Kaisha | Vehicle and Driving Assist System for Vehicle |
EP2045179A1 (fr) * | 2007-10-04 | 2009-04-08 | HONDA MOTOR CO., Ltd. | Véhicule motorisé de petite taille |
US20090141377A1 (en) * | 2007-10-31 | 2009-06-04 | Yamaha Hatsudoki Kabushiki Kaisha | Side mirror of motorcycle and motorcycle therewith |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE627998C (de) * | 1933-10-03 | 1936-03-27 | Siegfried Weiermiller | Rueckblickspiegel fuer Motor- und Fahrraeder |
US3915563A (en) * | 1974-07-18 | 1975-10-28 | Raymond Lee Organization Inc | Snowmobile rear view mirror |
JPS58116491A (ja) * | 1981-12-08 | 1983-07-11 | オムニケム | アミノ酸のn―(ビンブラスチノイル―23)誘導体及びそれを含有する薬剤組成物 |
US4441574A (en) * | 1981-05-21 | 1984-04-10 | Honda Giken Kogyo Kabushiki Kaisha | Rear cover device for motorcycles |
JPS6092686A (ja) * | 1983-10-26 | 1985-05-24 | Sumitomo Electric Ind Ltd | 半導体レ−ザ−装置 |
US4696509A (en) * | 1984-07-18 | 1987-09-29 | Honda Giken Kogyo Kk | Windshield adjustment device |
US4759620A (en) * | 1985-12-25 | 1988-07-26 | Honda Giken Kogyo Kabushiki Kaisha | Back-mirror device for small-sized vehicles |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2101546B (en) * | 1981-05-18 | 1985-01-09 | Honda Motor Co Ltd | Motorcycle fairings |
DE3431405A1 (de) * | 1984-08-27 | 1986-03-06 | Roland 7100 Heilbronn Priebe | Aerodynamische frontverkleidung fuer motorraeder |
JP2527188B2 (ja) * | 1987-06-19 | 1996-08-21 | 本田技研工業株式会社 | 自動二輪車の風防装置 |
-
1988
- 1988-06-16 US US07/208,139 patent/US4906086A/en not_active Expired - Lifetime
- 1988-06-20 FR FR8808238A patent/FR2616735B1/fr not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE627998C (de) * | 1933-10-03 | 1936-03-27 | Siegfried Weiermiller | Rueckblickspiegel fuer Motor- und Fahrraeder |
US3915563A (en) * | 1974-07-18 | 1975-10-28 | Raymond Lee Organization Inc | Snowmobile rear view mirror |
US4441574A (en) * | 1981-05-21 | 1984-04-10 | Honda Giken Kogyo Kabushiki Kaisha | Rear cover device for motorcycles |
JPS58116491A (ja) * | 1981-12-08 | 1983-07-11 | オムニケム | アミノ酸のn―(ビンブラスチノイル―23)誘導体及びそれを含有する薬剤組成物 |
JPS6092686A (ja) * | 1983-10-26 | 1985-05-24 | Sumitomo Electric Ind Ltd | 半導体レ−ザ−装置 |
US4696509A (en) * | 1984-07-18 | 1987-09-29 | Honda Giken Kogyo Kk | Windshield adjustment device |
US4759620A (en) * | 1985-12-25 | 1988-07-26 | Honda Giken Kogyo Kabushiki Kaisha | Back-mirror device for small-sized vehicles |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5314207A (en) * | 1992-06-10 | 1994-05-24 | Roadmaster Corporation | Bicycle with simulated motorcycle parts |
US5610772A (en) * | 1993-03-23 | 1997-03-11 | Ichikoh Industries Ltd. | Automobile sideview mirror |
US20050088766A1 (en) * | 2003-10-27 | 2005-04-28 | Daviss John J. | Rear view mirror for a motorcycle |
US20080073930A1 (en) * | 2006-07-12 | 2008-03-27 | Edwards Jerry A | Motorcycle windshield |
US7722108B2 (en) * | 2006-09-29 | 2010-05-25 | Honda Motor Co., Ltd. | Windshield device |
US20080079285A1 (en) * | 2006-09-29 | 2008-04-03 | Honda Motor Co., Ltd. | Windshield device |
US20080141821A1 (en) * | 2006-12-15 | 2008-06-19 | Physical Logic Ag | Integrated Hand and Controls Protection System |
US9016167B2 (en) * | 2006-12-15 | 2015-04-28 | Paul Degarate | Integrated hand and controls protection system |
US20090021582A1 (en) * | 2007-07-20 | 2009-01-22 | Kawasaki Jukogyo Kabushiki Kaisha | Vehicle and Driving Assist System for Vehicle |
EP2045179A1 (fr) * | 2007-10-04 | 2009-04-08 | HONDA MOTOR CO., Ltd. | Véhicule motorisé de petite taille |
AU2008229773B2 (en) * | 2007-10-04 | 2012-08-02 | Honda Motor Co., Ltd. | Small-sized motorized vehicle |
US20090141377A1 (en) * | 2007-10-31 | 2009-06-04 | Yamaha Hatsudoki Kabushiki Kaisha | Side mirror of motorcycle and motorcycle therewith |
US7771064B2 (en) * | 2007-10-31 | 2010-08-10 | Yamaha Hatsudoki Kabushiki Kaisha | Side mirror of motorcycle and motorcycle therewith |
Also Published As
Publication number | Publication date |
---|---|
FR2616735B1 (fr) | 1995-03-10 |
FR2616735A1 (fr) | 1988-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HONDA GIKEN KOGYO KABUSHIKI KAISHA, 1-1, MINAMI-AO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:IMAI, AKIRA;SUZUKI, TAKAHISA;NISHIMOTO, KENICHI;AND OTHERS;REEL/FRAME:004901/0616 Effective date: 19880610 Owner name: HONDA GIKEN KOGYO KABUSHIKI KAISHA,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:IMAI, AKIRA;SUZUKI, TAKAHISA;NISHIMOTO, KENICHI;AND OTHERS;REEL/FRAME:004901/0616 Effective date: 19880610 |
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STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
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FPAY | Fee payment |
Year of fee payment: 4 |
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FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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FPAY | Fee payment |
Year of fee payment: 8 |
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FPAY | Fee payment |
Year of fee payment: 12 |